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Effects of Arbuscular Mycorrhizal Fungi on Tomato Growth and Root-Knot Nematode Disease |
ZHOU Liyan,LU Jianzeng,HUANG Xinyi,SUN Zhaozhi,WU Fengzhi,GAO Danmei* |
(College of Horticulture and Landscape Architecture,Northeast Agricultural University,Harbin 150030,Heilongjiang,China) |
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Abstract Abstract:To investigate the effects of arbuscular mycorrhizal fungi(AMF)on tomato plant growth andits inhibitory effect on root-knot nematodes,a greenhouse pot experiment was conducted.The Funneliformismosseae was inoculated in tomato seedlings along with second-stage juveniles of southern root-knotnematodes,while a control group without AMF inoculation was set up.The results showed that compared tothe control group,the aboveground fresh and dry mass of tomato seedlings significantly increased by 18.1%and 24.8%,respectively,after AMF inoculation.The disease index of root-knot nematode infection decreasedby 29.5%.The content of N,P,and K in plants increased by 6.9%,80.5%,and 63.0%,respectively.Additionally,soil ammonium nitrogen,nitrate nitrogen,available phosphorus,and available potassiumcontent increased by 6.8%,20.7%,8.1%,and 7.8% respectively after AMF inoculation.Overall,thesefindings demonstrate that AMF inoculation promotes tomato growth,suppresses the occurrence of root-knotnematode disease in tomatoes,and increases nutrient levels in both plants and soil.
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Received: 08 August 2023
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